Coating device and coating method for graphene lithium battery pole piece

Abstract

The invention discloses a coating device and a coating method for a graphene lithium battery pole piece. The coating device comprises a coating device body, wherein a coating chamber, a drying chamberand a transfer cavity are formed in the coating device body from top to bottom; the upper side of the coating chamber is open, and a top plate is fixedly connected to the opening; a coating opening is formed in the top plate; a pair of guide rollers and a pair of coating rollers are rotationally mounted on the inner walls of the two sides of the coating opening in sequence from top to bottom; thetwo coating rollers are connected with first motors; telescopic cylinders are mounted on the sides, far away from each other, of the two first motors; a coating cavity is formed in the top plate; a coating outlet pipe is arranged on the inner walls of the other two sides of the coating opening, is positioned above the coating rollers and is communicated with the coating cavity; and the end, far away from the coating cavity, of the coating outlet pipe is a lower end. The coating device and the coating method have the advantages that the coating thickness can be freely controlled, the coating quality is improved, and the wind power is changed according to the height during subsequent drying, so that the coating is more uniform.

Description

technical field [0001] The invention relates to the field of coating technology, in particular to a coating device and a coating method for a graphene lithium battery pole piece. Background technique [0002] Graphene lithium battery is a new energy battery developed by utilizing the characteristics of rapid and large-scale shuttle movement of lithium ions between the graphene surface and electrodes. The battery pole piece is the core component of the battery. When producing the battery pole piece, it needs to carry out the process of powder slurry, coating, rolling and shearing. Among them, coating is the key process of producing the battery pole piece. [0003] In the electrode production process, it is necessary to use a coating device to mix electrode materials and coat a fluid coating on the substrate, and then dry and shape it. The existing coating device has a simple structure and cannot control the coating thickness. Moreover, it cannot be quickly dried and set afte...

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Problems solved by technology

[0003] In the electrode production process, it is necessary to use a coating device to mix electrode materials and coat a fluid coating on the substrate, and then dry and shape it. The existing coating device has a simple structure and cannot control the coating thickness. Moreover, it cannot be dried and set quickly after coating, and may fall due to the flow of the paint, resulting in uneven coating and low coating quality

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